JP6633205B2 - Casting equipment for continuous casting line and its operation - Google Patents

Description

  The present invention relates to a casting device for a continuous casting line and a method of operating the same.

  In the case of continuous casting in a continuous casting line, a casting strand is formed from the molten metal. To this end, the metal melt is transported to a mold in a continuous casting line. As the mold cools, solidification of the melt begins in the mold. Here, inside the mold, the surface area of the melt solidifies to form a so-called strand shell, which surrounds the metal core, which is still liquid. The casting strands formed in the mold are discharged through a mold outlet into a so-called strand guide, where the casting strands are transported through the strand guides, where they are cooled.

  In order to form the casting strand head, i.e. the front end of the casting strand, the mold outlet is closed when starting continuous casting with a dummy bar head of a so-called dummy bar, also called cold strand (Kaltstrang). A cast strand head is formed on the dummy bar head. Next, the dummy bar is first guided through the strand guide, together with the casting strand, and then separated from the casting strand. Before starting a new continuous casting, the dummy bar is again transported to the mold for use in forming the casting strand head of another casting strand to be formed. Starting continuous casting by forming a casting strand head is also referred to as starting casting of the casting strand (Angiessen).

  Various techniques are known for separating the dummy bar from the cast strand head and returning it to the mold. For example, the dummy bar is moved back into the mold in a cycle around the continuous casting line and is guided through the mold before the next casting (so-called "top feed"). However, such circulation requires sufficient installation space.

  Furthermore, dummy bar heads are known which form a hook-like connection with the casting strand head, respectively, which connection is released through a tilting movement of the dummy bar head relative to the casting strand. However, such a connection between the dummy bar head and the cast strand head is only feasible if the cast strand is relatively thick (eg having a strand thickness greater than 180 mm). This is because if the cast strands are too thin, the necessary tensile forces cannot be transmitted.

  If the casting strand is thin, for example, it is separated from the dummy bar head fixedly connected to the casting strand by so-called pendulum shears. The dummy bar is then moved laterally from the casting strand and placed in the dummy bar storage. Next, the cast strand pieces remaining on the dummy bar are separated from the dummy bar. Before the next casting, the dummy bar is again transported through the strand guide to the mold and placed in the casting position (so-called "bottom feed").

U.S. Pat. No. 6,037,056 discloses a method and apparatus for operating a continuous casting line, wherein a cold strand head is connected to a hot strip through a tie rod. The tie rod is provided with a joint bolt, and the joint bolt is rotatably mounted in a cylindrical recess of the low-temperature strand head. By turning the cold strand head relative to the joint bolt, the cold strand head can be separated from the tie rod.

EP 1 249 287 A1

  The present invention describes an improved casting apparatus for a continuous casting line and a method of operating the same, which casting apparatus is particularly suitable for forming relatively thin casting strands.

According to the invention, the problem with the casting apparatus is solved by the features of claim 1, and the problem with the method is solved by the features of claim 9 .

  Advantageous aspects of the invention are the subject of the dependent claims.

  The casting apparatus of the continuous casting line according to the present invention is a mold for forming a casting strand from a metal melt filled in the mold, and a downstream side of the mold, a strand guide for transporting the casting strand and A dummy bar having a dummy bar head forming a first dummy bar end of the dummy bar, the dummy bar being configured to close a mold outlet of the mold when starting continuous casting; and Lifting device for lifting the dummy bar at the second dummy bar end, and at least one connecting element for connecting the casting strand head of the casting strand to the dummy bar head, which can be releasably connected to the second dummy bar end of the same. And A first part of the connecting element is then releasably connectable to the dummy bar head, and a second part of the connecting element is poured into the casting strand head while starting continuous casting in the mold. . The releasable connection between the connection element and the dummy bar head is a swivel joint connection, which connection is to be released by a swiveling movement of the dummy bar head around the axis of rotation of the swivel joint connection that occurs when the dummy bar is raised. Can be.

  The releasable connection between the dummy bar head and the casting strand head by at least one connecting element advantageously also allows the connection between the relatively thin casting strand and the dummy bar head, the relatively thin casting strand connecting the casting strand. It can be separated from the dummy bar without being separated, and therefore, there is no need to remove the cast strand pieces remaining on the dummy bar from the dummy bar. Raising the dummy bar further allows easy return of the dummy bar to the mold, for example using a dummy bar transporter, without having to temporarily store the dummy bar in the dummy bar yard for this return. During the next casting, a dummy bar can be supplied to the mold in a "top feed" manner.

According to the invention , furthermore , the releasable swivel joint connection between the connection element and the dummy bar head comprises a universal joint shaft bearing and a universal joint shaft mounted in the universal joint shaft bearing and extending along the rotation axis. , The universal joint shaft bearing is formed by a first part of the connecting element, the universal joint shaft being a component of a dummy bar head. This achieves a connection between the dummy bar head and the cast strand head, which can be released by a pivoting movement of the dummy bar head when pulling up the dummy bar, in a structurally easy manner.

According to one aspect of the invention, the dummy bar head has, for each connection element, a recess for receiving a first part of the connection element. As a result, no additional installation space is used by the connecting element compared to the fixed connection between the dummy bar head and the cast strand head.

According to a further state like the present invention, at least one connecting element has a hook-shaped universal joint shaft bearing having a concave support surface for the universal joint shaft, the dummy bar head, the supporting surface Has at least one universal joint shaft with a convex contact surface corresponding to. In that case, if the connecting element is connected to the dummy bar head and the connecting element separates from the supporting surface by the pivoting movement of the dummy bar head, the contact surface is adjacent to the supporting surface.

According to another aspect , at least one connection element has a U-shaped universal joint shaft bearing, from which the universal joint shaft arranged on the universal joint shaft bearing is removed by a dummy bar head. By pulling up, it is possible to pull out. At this time, for example, the opening for the universal joint shaft provided on the universal joint shaft bearing, which is formed by the U-shaped universal joint shaft bearing, narrows toward the open end of the U-shape. Since the shaft has various dimensions in the direction perpendicular to the rotation axis, it can only be withdrawn from the universal joint shaft bearing after the pivoting movement of the dummy bar head.

  The embodiments described above each advantageously provide a releasable swivel joint connection between the dummy bar head and the cast strand head in a structurally easy manner.

  According to a further aspect of the invention, the second part of the at least one connecting element is formed in a T-shape, the T-bar forming the end of the connecting element. In this case, a stable connection between the connecting element and the cast strand head is advantageously obtained by pouring the crossbar of T into the cast strand head.

  According to a further aspect of the invention, the lifting device includes a cable winch. This advantageously allows a simple and space-saving construction of the lifting device.

  According to a further aspect of the present invention, a dummy bar carrier is provided, with which the dummy bar can be transported from the lifting device to the mold. This allows the dummy bar to be returned to the mold for casting of additional casting strands.

  In a method according to the invention for operating a casting apparatus according to the invention, before starting continuous casting, at least one connecting element is connected to a dummy bar by a swivel joint connection, the dummy bar comprising a dummy bar head. Closes the mold outlet of the mold and the dummy bar is arranged to be guided in the strand guide. While forming the casting strand head of the casting strand while initiating continuous casting, the second portion of the at least one connecting element is poured into the casting strand head of the casting strand. After formation of the casting strand head, the casting strand and the dummy bar connected to the casting strand head are transported through the strand guide, and the dummy bar is lifted while the casting strand is transported through the strand guide. As the device is pulled up at its second dummy bar end, the connection between the dummy bar head and the at least one connection element is released and the dummy bar head is separated from the at least one connection element. The method allows for the connection and automatic disconnection of the dummy bar with a thin cast strand having the advantages already mentioned.

  According to a further aspect of the method, the dummy bar is lifted by a lifting device after the second dummy bar end of the dummy bar has passed through the strand guide. Thereby, it is possible to separate the dummy bar from the casting strand immediately downstream of the strand guide and the dummy bar can be returned to the mold again during the casting process, so that the casting strand leaves the strand guide. Immediately after that, the casting of further casting strands can be started.

  According to a further aspect of the method, the lifting speed at which the dummy bar is raised is synchronized with the transport speed at which the casting strand is transported through the strand guide. This advantageously avoids raising the dummy bar too fast or too slow.

  According to a further aspect of the method, after lifting, the dummy bar is mounted on a dummy bar carrier and transported on the dummy bar carrier in a transport direction to the mold. Preferably, at that time, the vehicle end of the dummy bar carrier facing the lifting device is lifted before mounting the dummy bar, and is lowered after mounting the dummy bar or while the dummy bar is mounted. In particular, since the vehicle end of the dummy bar carrier facing the lifting device can be raised to a height corresponding to the position of the second dummy bar end, when the dummy bar is mounted on the dummy bar carrier, There is no need to lower the dummy bar hanging on the lifting device.

  Further, the dummy bar is mounted on the dummy bar carrier, preferably in the transport direction, with the second dummy bar end facing the mold. Thereby, it is already possible to subsequently introduce the dummy bar mounted on the dummy bar transporter into the mold again without having to change the direction in advance, thereby facilitating the introduction of the dummy bar into the mold and speeding up the process. Be transformed into

  The characteristics, features and advantages of the invention described above and the method for obtaining them will be more clearly understood in connection with the following detailed description with reference to the drawings of embodiments. Shown is the following figure:

It is sectional drawing which showed roughly a part of continuous casting line which has a casting apparatus. FIG. 2 is a perspective sectional view showing a first embodiment of a casting strand head, a dummy bar head connected to the casting strand head, and a connection element. FIG. 2 is a perspective sectional view showing a first embodiment of a cast strand head, a dummy bar head released from the cast strand head, and a connection element. FIG. 4 is a perspective sectional view showing a second embodiment of the casting strand head, the dummy bar head connected to the casting strand head, and the connection element. FIG. 4 is a perspective sectional view showing a second embodiment of the cast strand head, the dummy bar head released from the cast strand head, and the connection element. FIG. 7 is a side view showing a state after the dummy bar hanging on the connection unit of the lifting device is separated from the casting strand head. FIG. 4 is a flow chart of a method for operating a casting apparatus.

  In all the figures, corresponding members are provided with the same reference numerals.

  FIG. 1 is a sectional view schematically showing a part of the continuous casting line 1. The continuous casting line 1 includes a mold 3, a strand guide 5, and a casting device 7. Further components of the continuous casting line 1, such as a ladle and a tundish for filling the mold 3, are not shown.

  The molten metal 11 is transported into the mold 3 for forming the casting strand 9. The mold 3 is cooled, and solidification of the melt 11 starts in the mold 3. The solidified melt 11 is discharged from the mold 3 through the mold outlet 13 and into the strand guide 5 to form a cast strand 9, which is transported through the strand guide 5, Is further cooled using a cooling device (not shown). The strand guide 5 has a strand guide roll 15 for guiding and supporting the casting strand 9.

  The casting device 7 includes a dummy bar 17 having a dummy bar head 19, a lifting device 20, and a dummy bar transport vehicle 23.

  The dummy bar head 19 forms the first dummy bar end of the dummy bar 17 and is configured to close the mold outlet 13 when starting continuous casting, whereby the casting strand 9 of the casting strand 9 is formed. The head 10 is formed. The dummy bar head 19 is releasably connected to the casting strand head 10 via a connection element 25 when starting continuous casting. See FIGS. 2-5 and the description.

  The lifting device 20 is releasably connectable to the second dummy bar end 27 of the dummy bar 17, and is configured to lift the dummy bar 17 at the second dummy bar end 27. For this purpose, the lifting device 20 has a cable winch 21 and a connection unit 22. See FIG. 6 and its description.

  After the formation of the casting strand head 10, the casting strand 9 and the dummy bar 17 connected to the casting strand head 10 are transported through the strand guide 5. After the second dummy bar end 27 has passed through the strand guide 5, the dummy bar 17 is pulled up at the second dummy bar end 27 by the lifting device 20 behind the strand guide 5. At that time, the lifting speed at which the dummy bar 17 is lifted is synchronized with the transport speed at which the casting strand 9 is transported through the strand guide 5. By this lifting, the dummy bar head 19 is automatically released from the cast strand head 10. See FIGS. 2-5 and the description. After the lifting, the dummy bar 17 rests on the lifting device 20 above the casting strand 9, interrupting the continuous casting process since the dummy bar 17 has a distance from the casting strand 9 of, for example, more than 100 mm. It is possible to continue without. FIG. 1 shows the dummy bar 17 at a position where the second dummy bar end 27 has passed through the strand guide 5 immediately before the lifting, and the dummy bar 17 hanging on the lifting device 20 after the lifting.

  After lifting, the dummy bar 17 is mounted on a dummy bar carrier 23, transported by the dummy bar carrier 23 in the transport direction 29 back to the mold 3 and supplied to the casting of further casting strands 9.

  In order to mount the dummy bar 17 on the dummy bar transport vehicle 23, the vehicle end 24 facing the lifting device 20 of the dummy bar transport vehicle 23 is lifted to a height corresponding to the position of the second dummy bar end 27, There is no need to lower the dummy bar 17 hanging on the lifting device 20. The dummy bar 17 is mounted on the dummy bar transport vehicle 23 in the transport direction 29, and the second dummy bar end 27 faces the mold 3. To this end, the dummy bar 17 is lifted onto the dummy bar carrier 23 at the second dummy bar end 27 by, for example, a circulation chain with hooks arranged on the dummy bar carrier 23. As a result, it is already possible for the dummy bar 17 mounted on the dummy bar carrier 23 to be subsequently again introduced into the mold 3 without having to change direction in advance.

  After or while the dummy bar 17 is mounted on the dummy bar carrier 23, the vehicle end 24 of the dummy bar carrier 23 transports the dummy bar 17 to the mold 3 using the dummy bar carrier 23. It is dropped to. FIG. 1 shows the dummy bar carrier 23 in a position where the vehicle end 24 is lifted, and the dummy bar carrier 23 in a position after the vehicle end 24 is lowered.

  Prior to casting the further casting strand 9, the connecting element 25 is attached to the dummy bar head 19, and then the dummy bar 17 is moved by the dummy bar head 19 so that it passes through the mold 3 from the second dummy bar end 27. Therefore, it is guided until the mold outlet 13 is closed (so-called "top feed").

  2 and 3 are perspective sectional views showing a first embodiment of the dummy bar head 19, the cast strand head 10, and the connection element 25, respectively. At this time, FIG. 2 shows the dummy bar head 19 and the cast strand head 10 in a state where both are connected to each other. FIG. 3 shows that the dummy bar head 19 and the cast strand head 10 are disconnected from each other. The state is shown.

  Each connecting element 25 is poured into the casting strand head 10 during the start of the continuous casting, with the first part 31 being releasably connectable to the dummy bar head 19, thereby securing to the casting strand head 10. And a second portion 33 that is electrically connected. The dummy bar head 19 has, for each connection element 25, a recess 34 for receiving the first part 31 of the connection element 25.

  The releasable connection between the first part 31 of the connecting element 25 and the dummy bar head 19 is a swivel joint connection, which takes place around the axis of rotation 35 of the swivel joint connection, which occurs when raising the dummy bar 17. Can be released by the turning motion of the dummy bar head 19. The rotation shaft 35 extends along the edge of the dummy bar head 19 on the casting strand side in the lateral direction of the dummy bar 17. The swivel joint connection comprises a universal shaft bearing formed by the first part 31 of the connecting element 25 and a dummy bar head 19 extending along a rotation axis 35 mounted in the universal shaft bearing. And the universal joint shaft 37 which is a component of the above.

  The universal joint shaft bearings are each formed in a hook shape, and each have a concave support surface 39 for the universal joint shaft 37. Each of the universal joint shafts 37 has a convex contact surface 41 corresponding to the support surface 39, the connection element 25 is connected to the dummy bar head 19, and the connection element 25 is supported by the pivotal movement of the dummy bar head 19. When separated from the surface 39, the contact surface 41 is adjacent to the support surface 39. At this time, the support surface 39 and the contact surface 41 each have a quadrant outline on a plane perpendicular to the rotation axis 35. Each universal joint shaft 37 has a fan-shaped cross section in a plane perpendicular to the rotation shaft 35, and the cross section is formed when the casting strand head 10 and the dummy bar head 19 are connected. It has a first linear peripheral region facing the strand head 10, a second linear peripheral region substantially perpendicular thereto, and an arc-shaped peripheral region facing the universal joint shaft bearing. I have.

  The second part 33 of each connection element 25 is formed in a T-shape, and the cross bar of T forms the end of the connection element 25.

  4 and 5 are perspective sectional views showing a second embodiment of the dummy bar head 19, the cast strand head 10, and the connection element 25, respectively. At this time, FIG. 4 shows the dummy bar head 19 and the cast strand head 10 in a state where both are connected to each other. FIG. 5 shows that the dummy bar head 19 and the cast strand head 10 are disconnected from each other. The state is shown.

  Similar to the embodiment shown in FIGS. 2 and 3, each connecting element 25 has a first portion 31 that is releasably connectable to the dummy bar head 19 and during the start of continuous casting. A second portion 33 that is cast into the casting strand head 10 and is thereby fixedly connected to the casting strand head 10. The dummy bar head 19 has, for each connection element 25, a recess 34 for receiving the first part 31 of the connection element 25.

  The releasable connection between the first part 31 of the connection element 25 and the dummy bar head 19 is again a swivel joint connection, which takes place around the axis of rotation 35 of the swivel joint connection, which occurs when raising the dummy bar 17. Can be released by the swiveling motion of the dummy bar head 19 at the time. The swivel joint connection comprises a universal shaft bearing formed by the first part 31 of the connecting element 25 and a dummy bar head 19 extending along a rotation axis 35 mounted in the universal shaft bearing. And the universal joint shaft 37 which is a component of the above.

  Unlike the embodiment shown in FIGS. 2 and 3, the universal joint shaft bearings are each formed in a U-shape, so that the universal joint shaft 37 is separated from the universal joint shaft bearing by pulling up the dummy bar head 19. It is possible to withdraw. At this time, the opening formed by the universal joint shaft bearing for the universal joint shaft 37 disposed on the universal joint shaft bearing is narrowed toward the open end of the U-shape. Due to their various dimensions in the direction perpendicular to the rotation axis 35, they can only be withdrawn from the universal joint shaft bearing after the pivoting movement of the dummy bar head 19.

  The second part 33 of each connection element 25 is again formed in a T-shape, the cross-bar of T forming the end of the connection element 25.

  In the embodiment shown in FIGS. 2 to 5, for example, a piece of metal is preferably poured into the area of the casting strand head 10 facing the dummy bar head 19, whereby the casting strand head 10 is Adhesion and overheating of the dummy bar head 19 during casting are avoided.

  FIG. 6 is a side view showing a state immediately after the dummy bar 17 hanging on the connection unit 22 of the lifting device 20 is separated from the casting strand head 10. The dummy bar 17 is configured to have the dummy bar head 19 as the first link as a chain link 43 movable with respect to each other. The connection unit 22 includes a hook element 45 which rests on a chain link 43 forming the second dummy bar end 27.

  FIG. 7 shows, in a flow chart, a method for operating the casting apparatus 7, comprising steps S1 to S5.

  In a first step S1, before the start of the continuous casting, first the first part 31 of the connection element 25 is connected to the dummy bar head 19 by means of a swivel joint connection, respectively. Is closed so that the dummy bar 17 is guided in the strand guide 5.

  In the second step S2, the second part 33 of the connection element 25 connected to the dummy bar head 19 is poured into the casting strand head 10 during the formation of the casting strand head 10 while continuous casting is started. It is.

  In the third step S3, after the formation of the casting strand head 10, the casting strand 9 and the dummy bar 17 connected to the casting strand head 10 are transported through the strand guide 5.

  In a fourth step S4, the dummy bar 17 is lifted at its second dummy bar end 27 using the lifting device 20 while the casting strand 9 is being transported through the strand guide 5, so that the dummy bar head The connection between 19 and the connection element 25 is released, and the dummy bar head 19 is separated from the connection element 25.

  In a fifth step S5, the dummy bar 17 is mounted on the dummy bar transport vehicle 23 after being lifted, and then transported to the mold 3 by the dummy bar transport vehicle 23. After step S5, a first step S1 is again performed in order to cast a further strand 9.

  Although the present invention has been shown and described in detail through preferred embodiments, the present invention is not limited by the disclosed examples, and may be modified by those skilled in the art without departing from the scope of the present invention. An example can be derived.

DESCRIPTION OF SYMBOLS 1 Continuous casting line 3 Mold 5 Strand guide 7 Casting device 9 Casting strand 10 Casting strand head 11 Melt 13 Mold outlet 15 Strand guide roll 17 Dummy bar 19 Dummy bar head 20 Lifting device 21 Cable winch 22 Connection element 23 Dummy bar carrier 24 Vehicle end Part 25 connecting element 27 second dummy bar end 29 transport direction 31 first part 33 second part 34 recess 35 rotation axis 37 universal joint shaft 39 support surface 41 contact surface 43 chain link 45 hook element S1-S5 Steps

Claims (14)

A mold (3) for forming a casting strand (9) from the metal melt (11) filled in the casting mold (3) and the casting strand (9) arranged downstream of the casting mold (3). A continuous casting line (1) having a strand guide (5) for transport, wherein the casting device (7) comprises:
A dummy bar head (19) configured to close the mold outlet (13) of the mold (3) when starting continuous casting, and forming the first dummy bar end of the dummy bar (17); A dummy bar (17) having
A lifting device (21) for lifting the dummy bar (17) at the second dummy bar end (27), which can be releasably connected to a second dummy bar end (27) of the dummy bar (17); ,
Through a releasable connection between the first part (31) of the connecting element (25) and the dummy bar head (19), and through the second part (33) of the connecting element (25) and the cast strand head ( through solid Joteki connection 10), and at least one connecting element for connecting said cast strand head (10) of the cast strand (9) wherein the dummy bar head (19) (25),
Wherein the releasable connection between the connection element (25) and the dummy bar head (19) is a swivel joint connection, wherein the swivel joint connection occurs upon lifting of the dummy bar (17). Releasable by a swiveling movement of said dummy bar head (19) around a swivel joint connection axis of rotation (35);
The releasable swivel joint connection between the connection element (25) and the dummy bar head (19) is connected to a universal joint shaft bearing and the rotating shaft (35) mounted in the universal joint shaft bearing. A universal joint shaft (37) extending along said universal joint shaft (37), said universal joint shaft bearing being formed by said first part (31) of said connecting element (25), said universal joint shaft (37). 37) A casting device (7) which is a component of the dummy bar head (19).   The dummy bar head (19) has, for each connection element (25), a recess for receiving the first part (31) of the connection element (25). The casting apparatus (7) according to claim 1.   At least one connection element (25) has a hook-shaped universal joint shaft bearing with a concave support surface (39) for the universal joint shaft (37), said dummy bar head (19) comprising: It has at least one universal joint shaft (37) with a convex contact surface (41) corresponding to the support surface (39), wherein the connecting element (25) is connected to the dummy bar head (19). Connected, wherein the contact surface (41) is adjacent to the support surface (39) when separated from the support surface (39) by a pivoting movement of the dummy bar head (19). A casting device (7) according to claim 1 or 2, wherein   At least one connecting element (25) has a U-shaped universal joint shaft bearing, from which the universal joint shaft (37) disposed on the universal joint shaft bearing is removed from the dummy bar. Casting device (7) according to one of the claims 1 to 3, characterized in that the head (19) can be pulled out by pulling it up.   An opening for a universal joint shaft (37) disposed on the universal joint shaft bearing, formed by the U-shaped universal joint shaft bearing, narrows toward an open end of the U-shape; Since the joint shaft (37) has various sizes in a direction perpendicular to the rotation shaft (35), the universal joint shaft (37) is moved after the turning movement of the dummy bar head (19). Casting device (7) according to claim 4, characterized in that it can be withdrawn from the universal joint shaft bearing for the first time.   The second part (33) of at least one connection element (25) is formed in a T-shape, the cross bar of T forming an end of said connection element (25). Casting device (7) according to any of the preceding claims, wherein:   The casting device (7) according to any of the preceding claims, characterized in that the lifting device (21) comprises a cable winch (21). And mounting the dummy bar (17), said to pulling from the device (21) comprising: a dummy bar truck (23) capable of transporting the up mold (3), any one of claims 1 to 7 Casting device (7) according to one of the preceding claims. A method for operating a casting device (7) according to any one of the preceding claims,
-Before the start of the continuous casting, at least one connecting element (25) is connected to the dummy bar (17) by means of a swivel joint connection, said dummy bar (17) being connected to the dummy bar head (19) by the mold The outlet (13) is closed and said dummy bar (17) is arranged to be guided in the strand guide (5);
- while starting the continuous casting, the cast strand (9) during formation of the cast strand head (10) of such that the connected at least one second portion of the connecting element (25) and (33) The casting strand head (10) of the casting strand (9) is formed ;
-After the formation of the casting strand head (10), the casting strand (9) and the dummy bar (17) connected to the casting strand head (10) are transported through the strand guide (5). ,
The dummy bar (17) is lifted at its second dummy bar end (27) by a lifting device (21) while the cast strand (9) is being transported through the strand guide (5). The connection between the dummy bar head (19) and the at least one connection element (25) is broken, and the dummy bar head (19) is separated from the at least one connection element (25).   The dummy bar (17) is lifted by the lifting device (21) after the second dummy bar end (27) of the dummy bar (17) passes through the strand guide (5). The method according to claim 9.   11. The speed at which the dummy bar (17) is lifted is synchronized with the speed at which the casting strand (9) is transported through the strand guide (5). 12. the method of.   The dummy bar (17) is mounted on a dummy bar transporter (23) after being lifted, and is transported by the dummy bar transporter (23) in a transport direction (29) reaching the mold (3). A method according to any one of claims 9 to 11.   A vehicle end (24) of the dummy bar transporter (23) facing the lifting device (21) is lifted before mounting the dummy bar (17), and after mounting the dummy bar (17), or The method according to claim 12, characterized in that the dummy bar (17) is lowered while being mounted.   The dummy bar (17) is mounted on the dummy bar carrier (23) in the transport direction (29), and the second dummy bar end (27) faces the mold (3). The method according to claim 12 or 13, wherein

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